FMV02 Datasheet, PDF (3/4 Pages) 3M Electronics – 3M™ Void Polyester Label Products

3M^™ Void Polyester Label Products
FMV02 • FMV12 • FMV22 • FMV32 • FMV0E
Application Ideas
• Tamper-indicating labels and seals for packaging applications.
• Non-transferable durable goods label.
Die-Cutting
The compact “void” message permits manufacture of labels as small as ¹/2 in. x 1¹/4 in.
(13 mm x 32 mm).
It is recommended that the user test for the presence of the “void” message on every
roll of label seals as they process them, to insure the product quality and consistency.
Which can be done by laminating a label seal to an untreated polyester film test surface.
The label seal should be wiped down with a squeegee, allowed to dwell 10 minutes, and
then removed to observe the presence and functions of the “void” message on both the
facestock and the substrate. It is also recommended that the user test each lot of label
seals on the actual application surface to assure the function of the “void” message.
Dispensing
As care should be taken not to disturb the tamper-indicating feature by pre-destructing
the “void” message when manually removing the label from the liner, slowly remove the
liner from the label at a 90° angle. It is recommended that the user test samples for each
roll of label seals by laminating a representative label seal to the specific application
surface to assure its function meets expectations. This test can be run after 10 minutes
dwell; however, final judgement should be based on 72 hours dwell at room temperature
prior to testing.
Application
The tamper-indicating mechanism (i.e. the “void” message both on the facestock and
on the substrate) depends upon adequate adhesion of the label to the substrate. A
sufficient bond may not develop on all surfaces due to low surface energy (e.g. PTFE),
contaminated or textured surfaces. Therefore, it is important to determine the
suitability of the product in the intended application by carefully pretesting. The
primary function of the products is to effect a non-transferable (non-reusable) label
seal by causing the “void” message to appear on the facestock when removal from the
substrate is attempted. As a result of the primary function, a “void” message is also
transferred to the substrate and can be removed by hand rubbing or by solvent wiping.
Our tamper-indicating product line is designed to indicate tampering by destructing
when an attempt is made to remove the label. Since no tamper-indicating feature is
100% tamper proof, careful consideration must be taken when designing label seals.
When the consequences of tampering could be severe, such as injury or loss of human
life or significant monetary loss, these products are not recommended as the sole
means of package or product tamper indication. In these instances, additional methods
in combination with the labels should be considered so that the tamper-indicating
features are commensurate with the requirements of the application.
-3-